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Whose observations confirmed general relativity?

ScienceHistory

Quick Answer

Arthur Eddington observations during the total solar eclipse of 1919 confirmed a key prediction of Einstein general relativity, that gravity bends light.

The Full Story

Einstein general theory of relativity predicted that the gravity of a massive object like the Sun would bend the path of light passing near it. In 1919 the British astronomer Arthur Eddington led expeditions to observe a total solar eclipse, when stars near the Sun could be seen. By measuring how the apparent positions of those stars shifted, he found the light had been deflected by close to the amount Einstein predicted. The results made headlines around the world and turned Einstein into a global celebrity. It was one of the first dramatic confirmations of general relativity.

Key Facts

1.Eddington observed the 1919 solar eclipse to test relativity.
2.He measured how the Sun bent starlight.
3.The result closely matched Einstein prediction.

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Suggested video title for this topic:

"The Eclipse That Made Einstein Famous"